package com.zzs.utils;

import com.zzs.pojo.Content;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import org.springframework.stereotype.Component;

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

/**
 * @author zhaozhengshi
 * @date: 2022/3/30 17:07
 */
@Component
public class HtmlParseUtil {
//    public static void main(String[] args) throws Exception {
//        new HtmlParseUtil().parseJD("java").forEach(System.out::println);
//    }

    public List<Content> parseJD(String keywords) throws IOException {
        String url = "https://search.jd.com/Search?keyword=" + keywords;
//        解析网页
        Document document = Jsoup.parse(new URL(url), 30000);
//        所有在js中可以使用的方法，这里都能使用
        Element element = document.getElementById("J_goodsList");
//        获取所有li元素
        Elements elements = element.getElementsByTag("li");

        ArrayList<Content> goodsList = new ArrayList<Content>();

        for (Element el: elements) {
            String img = el.getElementsByTag("img").eq(0).attr("data-lazy-img");
            String price = el.getElementsByClass("p-price").eq(0).text();
            String title = el.getElementsByClass("p-name").eq(0).text();

            Content content = new Content();
            content.setImg(img);
            content.setPrice(price);
            content.setTitle(title);
            goodsList.add(content);
        }
        return goodsList;
    }

}
